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fx-private-relay
Keep your email safe from hackers and trackers. Make an email alias with 1 click, and keep your address to yourself.
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
I belive the best chioce for todays is https://simplelogin.io/, that is why:
Other services like this one: addy.io or relay.firefox.com (no pgp, as I remember)
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.